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Title: Powder coating removal Post by: Chedki on March 24, 2015, 05:16:55 pm Is it difficult or more labor extensive to sand-blast off powder coated painted items? If sand-blasting is not the best method, then what is the best way?
Title: Re: Powder coating removal Post by: Jim on March 25, 2015, 06:49:08 am Powder-coating is very difficult to remove from flat metal panels because sand-blasting heats the metal and will/could warp it.
Other metal objects such as vehicle frames, car wheels, poles, framing etc, etc all can be sand-blasted a little more aggressively, but it still can be difficult... I'm not sure what the object/part is needing attention, but you can sand prime/paint over powder-coating... Title: Re: Powder coating removal Post by: Chedki on March 25, 2015, 08:05:42 am It is flat metal panels that needs to have the powder coating removed. Good to know you can sand prime/paint over powder coating.
Thanks for the info. Title: Re: Powder coating removal Post by: Eric on March 25, 2015, 08:18:18 am Maybe call a powder coater... they may have something they use or could tell you what is best to use.
Got to be something to get it off in case they make a mistake on a job. Title: Re: Powder coating removal Post by: MoonDawg on March 25, 2015, 08:31:32 am I had a batch of parts that got powdercoated white, rather than silver.
Sent 'em back and they powdercoated right over them. :darn: Title: Re: Powder coating removal Post by: Jim on March 25, 2015, 08:10:21 pm Got to be something to get it off in case they make a mistake on a job. One of the sand-blasters I use has some "methal-ethyl bad sh#$%", and I mean BAD ! ! ! That can strip powder-coating off some materials... Ex. some time ago, I was stripping stoner shelves and for some reason, I had color coded zip-ties on the tie wire for a couple of sets/groups of shelves. Less than 5 min, the zip-ties were gone! Between 5 - 10 min later it was time to remove the shelves; they were clean!To add to Glenn's statement, all you need to do is sand/scuff the powder-coating and spray the part(s) again with the same/different color. Be for warned, if a part has close tolerances, you may want to consider sanding those areas extra to keep the thickness to a minimum for the second coat... Chedki - In your case, they can be sanded w/ 220 on a D/A Orbital sander and sent back for another coating with the new color! Title: Re: Powder coating removal Post by: Stotman on April 27, 2015, 05:09:29 pm My local powder coater puts previously powder coated items in an oven and burns off the old coat.
Title: Re: Powder coating removal Post by: Victor on April 27, 2015, 07:13:39 pm Try dipping , I had my doors and shell , bottle door and coin door dipped to take off all the paint for 80.00 bucks witch was well worth it.
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